Blade



June 17, 1947/ J. J. PALOTSEE BLADE Original Filed March 50, 1945' Patented June 17, 1947 2,422,434 BLADE John J. Palotsee, Youngstown, Ohio Original, application March 30, 1945, Serial No.

585,629, new cember 10, November 27,

, Patent No. 2,412,419, dated De- 194'6, Divided and 1945, Serial No. 631,085

this application 6: Claims. (01. 51- -1843) This invention relates to adjustable hones preferably but not necessarily of the type shown in my U. S. Letters Patents No. 2,358,247, dated Se tember 12, 1944; No. 2,269,378, dated Janu-' ary 6, 1942; No. 2,332,463, dated October 19, 1943; and No. 2,338,963, dated January 11, 1944. The present application is a division of my copending application Serial No. 585,629, filed March 30, 1945, now Patent No. 2,412,419, dated Dec. 10, 1946.

The principal object of the present invention is to provide novel means for removably mounting the Carborundum stones in their related blades, whereby various different types of Carborundum stones or other abrasive or honing stones may be inserted in the same set of blades to perform different kinds grades of work.

Other minor objects of the invention will be hereinafter set forth.

I will explain the invention with reference to the accompanying drawings, which illustrate several practical embodiments thereof to enable others familiar with the art to adopt and use the same; and will summarize in the claims the novel features of construction, and novel combinations of parts, for which protection is desired.

In said drawings:

Fig. 1 is a transverse section through ahone showing the hone spindle, blades, and hone holders.

Fig. 2 is a bottom plan view of a hone holder blade used in the assembly shown in Fig. 1.

Fig. 3 is an end view of the hone holding blade shown in Figs. 1-2, showing a removable Carborundum stone and holder in place in the blade.

Fig. 4 is a section through the C arboru'ndurn stone and holder shown in 3, detached from the blade.

Fig. 5 is a bottom plan view of the stone and attached holder, shown in Fig. 4. I

Fig. 6 is an end view similar to Fig. 3 but showing a modified stone and stone holder mounted in a modified blade.

Fig. 7 is a section through the stone and stone holder shown in Fig. 6, detached from the blade.

Fig. 8 is a bottom plan view of the stone holder, shown in Fig. 7.

Fig. 9 is an end view similar to Figs. 3 and 6 showing a further modified stone and stone holding blade.

Fig. 10 is an end view similar to Figs. 3, 6, 9, showing a still further modified stone and stone holding blade.

Fig. 11 is a section similar to Fig. 1 through a modified hone utilizing the type of blade and stone shown in Figs. 6, 7 and 8.

The hone comprises a pilot spindle I having hexagonal, square, or other polygonal tapered enlargements la adjacent its ends.

The corresponding faces of the tapered entheir under largements la; are adapted to slidably support metallic blades 26, six being shown in Fig. 1 having on their under sides beveled surfaces corresponding in taper with the faces of the enlargements la, upon which the beveled. faces of the blades 20 seat.

In Figs. 1, 2, 3, one construction of the blade and stone is illustrated.

Each blade 20, as shown in Fig. 3, is provided with a straight sided recess 20d in its outer face, and with two or more bores 20c extending radially through the ribs 200 opposite the beveled or cam portions 200. and 201) which contact the hexagonal or polygonal tapered enlargements la of the spindle I, the bores 206 having enlargements 20 (Fig. 3) at their inner ends for the purpose hereinafter described. Preferably the slots 29d are of less width than the outer arcuate faces of the blades 20 and are adapted to removably receive stones 2|, shown more particularly in Figs. 1, 3, 4, 5, which stones have ribs 21a on faces of less width and depth than the slots 29d in the outer arcuate faces blades 20, stone holder plates 22 being fitted to the under faces of the stones 2| and to the exposed faces of the ribs 2|a. on the inner faces of the stones 2| as shown in Figs. 3, 4, 5, said holders 22 having nuts 23 disposed within the offset portions opposite perforations 24 through which cap screws 25 are passed from the under sides of the blad's 20 through'the bores 202' through the holes 24 in the holders- 22 and engaging the nuts 23, the stones 2| being cemented in the holders 22. The heads of the screws 25 are housed in the enlarged bores 20; in'the inner ends of the bores 20a in ribs 260, as clearly shown in Fig; 3.

As shown in Fig. 1, the depth stones 2| and their holders 22 is depth of the slots 20d in the blades 20, and preferably the outer ends of the holders 22 at each side of the offset portion are curved on a slightly less radius than the arcuate outer faces of the blades 20 upon which same seat, so that as the cap screws 25 are tightened in the nuts 23 the sides of the holders 22 will tend to be flattened out, placing the screws 25 under tension, thus preventing loosening thereof while in service. Thus different sets of stones 2| mounted in their holders 22. may be mounted upon the single set of blades" 20', to provide a hone for performing different characteristics of work, the stones 2! with their holders 22 being readily removable or attachable to the blades 2|! by inserting or removing the capscrews 25.

Figs. 6, '7, 8 and 11 show a further modified form of stones, holders, and blades. In this modification the blades 30, Fig. 6, are provided with bores 30c having enlargements 35f at their inner ends, but the outer faces of the blades are of the ribs of the less than the of the the outerface of the holder 52 ers 32 and into the nuts 33, which'nuts are soldered or welded to the outer sides of the holders before assembly of the stone thereon, the heads of the cap screws 35 being housed in enlarge-- ments 3!!! of the bores 30c. The stones 3! are cemented or otherwise adhesively secured to the outer faces of the metallic holders 32. -When the set screws 33 are tightened to attach the stones 3| and then holders 32 to the blades 30, the holders 32 will tend to flatten out and thus place the cap screws 35 under tension, preventing same from working loose during operation. Fig. 11 shows a cross-section through the hone utilizing the blades 30, the stones 3| and holders 32, and showing the holders 32 contacting the outer edges of the blades 30 due to the tolerance in curvature above mentioned to'maintain the cap screws 35under tension. "Except asabove 'as far as their mounting la of the spindle I is concerned.

In Fig. 9, the blade 49 is similar to the blade 20, Fig, 3. However, in this modification, the blade has a tapered bore 43 and the cap screws 44 are passed through 'bores 45in the stone 4i,

the heads of the cap screws seating upon the outer face of the holder 42 so that the screws 44 are accessible from the outer surface of the blades instead of from the under sides of the. blades 40, In this modification, the outer por tions of the holders 42 would likewise be curved In Fig. 10, the blade 50 is arcuate and not grooved, and similar to the blade 30 of Fig. 6v the blade 50 being tapped as at 53 to receive the cap screws 54 which pass through bores 55 in the outer face of the stone the headseating upon In this modification, as in Fig; 6, the curvature of the holder 52 would be curved on a slightly smaller radius than the outer face of the blade 50, so that-the cap screws 54 when tightened will be placed under tension. i

The construction shown in Figs. -1 to 5 and 9 permits a maximum depth of stone to be used per blade, and said construction is simple to manufacture and assemble. 6 to 8 and however are still more simplified, and are particularly adaptable to small hones where the outside diameter of the hone is small; however, this type of stone mounting may also be used in larger hones.

I do not limit my invention to the exact forms shown in thedrawings, for obviously changes may be made therein Within the scope of .the claims.

I claim:

are provided with nuts 33' for the reception of cap screws 35 which pass through bores 30c and through holes in the hold The types shown in Figs. 7

1, In a hone, blades having arcuate outer faces; and stones on said outer faces,- said stones having metallic holders curved on less radius than the outer faces of the blades; and cap screws connectin the holders and blades, the screws when tightened being placed under tension by the flattening of the holders.

2. In ahone, blades having arcuate outer faces;

and stones on said outer faces, said stones having metallic holders curved on less radius than the outer faces of the blades; cap screws connecting the holders and blades, the screws when tightened being placed under tension by the flattening of the holders; said screws having heads housed in recesses in the outer faces of the stones and being tapped into threaded bores in the blades.

3. In a hone, blades having arcuate outer faces; and stones on said outer faces, said stones having metallic holders curved on less radius than the Number outer faces of the blades; cap screws connecting the holders and blades, the screws when tightened being placed under tension by the flattening of the holders, said screws passing through holes in the blades and threaded into nuts fixedly mounted on the outer faces of the holders. 5

4. In a hone, blades having arcuate outer faces provided with axially disposed grooves; and

stones on said outer faces having metallic holders formed with tongues entering the grooves, and said holders having side portions curved on less radius than the outer faces of the blades; and cap screws connecting the holders and blades, the screws when tightened being placed under tension by the flattening of the holders.

5. In a hone, blades having arcuate outer faces, provided with axially disposed grooves; and stones on said outer faces having metallic holders formed with tongues entering the grooves, and said holders having side portions curved on less radius than the outer faces of theblades; cap screws connecting the holders and blades, the screws when tightened beingplaced under tenbores in the blades. V

6. In a hone, blades having arcuate outerfaces provided with axially disposed grooves; and stones ers having side portions curved on less radius 3 JOHN 'J. PALOTSEE.

REFERENCES CITED V The following references are of record in the file of this patent:

FOREIGN PATENTS Country Date 267,922 Great Britain Dec. 8, 1927 being tapped into threaded 

